Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual 1964 tem um País de Estados Unidos e um 1969 menor que 7.3?
 ###Tabelas: CREATE TABLE twenty20_internationals (twenty20_internationals_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Wkts INT, Runs INT, Econ INT, Ovrs INT) CREATE TABLE season_three_2011 (season_three_2011_id AUTO_INCREMENT PRIMARY KEY, Series # INT, Episode # INT, Title VARCHAR, Written by VARCHAR, Directed by VARCHAR, Viewers INT, Original airdate VARCHAR) CREATE TABLE former_teams (former_teams_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Sport VARCHAR, League VARCHAR, Established INT, Began in St. Louis INT, Venue VARCHAR, Championships in St. Louis VARCHAR, Left St. Louis INT) CREATE TABLE 2007_data (2007_data_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Airport VARCHAR, Total Passengers INT, % Change 2006/2007 VARCHAR, International Passengers INT, Domestic Passengers INT, Transit Passengers INT, Aircraft Movements INT, Freight (Metric Tonnes) INT) CREATE TABLE 1960s (1960s_id AUTO_INCREMENT PRIMARY KEY, Country VARCHAR, 1960 INT, 1961 INT, 1962 INT, 1963 INT, 1964 INT, 1965 INT, 1966 INT, 1967 INT, 1968 INT, 1969 INT)  
SELECT MIN 1964 FROM 1960s WHERE Country = united states AND 1969 < 7.3